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Mackenzie Astin / Biography
Brother of actor Sean Astin. Son of Patty Duke and John Astin. Dropped out of Johns Hopkins University, where he majored in history. Brother-in-law of producer Christine Astin. Uncle of actress Alexandra Astin and Elizabeth Louise Astin. Dominic Monaghan was his roommate for a while. Mackenzie later made a guest appearance on Dominic's TV show, "Lost" (2005). Nephew of Ray Duke. Has three other half brothers: David, Allen and Tom